Business Description: Shenzhen WinWin Technology is a reputable, well established manufacture and whole-seller for Portable Power Sources, UPS Power and Mobile Power Charger accessories in Shenzhen,China since 2007.We rich experience in online retailing & international wholesaling and pride ourselves on offering excellent customer service.

With a team of young and experienced professionals in the R&D department, each of our products undergoes a five-step QC process. As a result, our products have attained 98 percent positive feedback from our clients worldwide.We also offer OEM/ODM services;